What do you use for inital design/concept in flash?

Hey there, first time poster here! :wink:

I am very eager to know what application y’all do your inital designs/comps in for flash websites… Do you just use Flash itself or use illustrator/Freehand or Fireworks???.. what have you found that gives the best results?

I’ve got an idea or so burning in my brain, I want to use one of the above 3 apps to do the main ground work in, and before I begin I want to know I’m doing the right thing…

Many thanks for an help or advice!

Kind Regards